21148480

素因数分解:

$2^6\times 5^1\times {\mathrm{66089}}^1$

素因数の和:66106

約数の個数: 28

約数和(自身を含む): 50360580

約数和(自身を除く): 29212100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 66089, 132178, 264356, 330445, 528712, 660890, 1057424, 1321780, 2114848, 2643560, 4229696, 5287120, 10574240, 21148480]

約数ペア:

[(1, 21148480), (2, 10574240), (4, 5287120), (5, 4229696), (8, 2643560), (10, 2114848), (16, 1321780), (20, 1057424), (32, 660890), (40, 528712), (64, 330445), (80, 264356), (160, 132178), (320, 66089)]